J/ApJ/855/4 Lyman break galaxies at z∼6-9 from HFF (Kawamata+, 2018)
Size-luminosity relations and UV luminosity functions at z=6-9 simultaneously
derived from the complete Hubble Frontier Fields data.
Kawamata R., Ishigaki M., Shimasaku K., Oguri M., Ouchi M., Tanigawa S.
<Astrophys. J., 855, 4-4 (2018)>
=2018ApJ...855....4K 2018ApJ...855....4K (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, photometry; Photometry, HST; Ultraviolet; Redshifts;
Gravitational lensing; Magnitudes, absolute; Galaxies, radius
Keywords: galaxies: evolution; galaxies: high-redshift; galaxies: structure
gravitational lensing: strong
Abstract:
We construct z∼6-7, 8, and 9 faint Lyman break galaxy samples (334,
61, and 37 galaxies, respectively) with accurate size measurements
with the software glafic from the complete Hubble Frontier Fields
(HFF) cluster and parallel fields data. These are the largest samples
hitherto and reach down to the faint ends of recently obtained deep
luminosity functions. At faint magnitudes, however, these samples are
highly incomplete for galaxies with large sizes, implying that
derivation of the luminosity function sensitively depends on the
intrinsic size-luminosity relation. We thus conduct simultaneous
maximum-likelihood estimation of luminosity function and
size-luminosity relation parameters from the observed distribution of
galaxies on the size-luminosity plane with the help of a completeness
map as a function of size and luminosity. At z∼6-7, we find that the
intrinsic size-luminosity relation expressed as re∝Lβ
has a notably steeper slope of β=0.46-0.09+0.08 than those at
lower redshifts, which in turn implies that the luminosity function
has a relatively shallow faint-end slope of α=-1.86-0.18+0.17.
This steep β can be reproduced by a simple analytical model in
which smaller galaxies have lower specific angular momenta. The β
and α values for the z∼8 and 9 samples are consistent with those
for z∼6-7 but with larger errors. For all three samples, there is a
large, positive covariance between β and α, implying that
the simultaneous determination of these two parameters is important.
We also provide new strong lens mass models of Abell S1063 and Abell370,
as well as updated mass models of Abell 2744 and MACS J0416.1-2403.
Description:
The data and the criteria for the sample selection are the same as
those in Ishigaki+ (2017, J/ApJ/854/73), but we remove two galaxies
from their samples.
We use the reduced image mosaics obtained in the Hubble Frontier
Fields (HFF) program, which are made publicly available through the
STScI website. This program targets six cluster fields --Abell 2744,
MACS J0416.1-2403, MACS J0717.5+3745, MACS J1149.6+2223, AbellS1063,
and Abell 370-- and their accompanying six parallel fields. Those
fields have been observed deeply with the Hubble Space Telescope using
three bands of the Advanced Camera for Surveys (ACS) and four bands of
the IR channel of the Wide Field Camera 3 (WFC3/IR).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table9.dat 74 132 Abell 2744 multiple image systems
table10.dat 74 202 MACS J0416.1-2403 multiple image systems
table11.dat 79 141 Abell S1063 multiple image systems
table12.dat 76 135 Abell 370 multiple image systems
table13.dat 130 350 Fitting results for dropouts at z∼6-7
table14.dat 130 64 Fitting results for dropouts at z∼8
table15.dat 130 39 Fitting results for dropouts at z∼9
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See also:
J/ApJ/519/1 : Lyman-break galaxies at z ≳ 4 (Steidel+, 1999)
J/ApJS/199/25 : CLASH sources for MACS1149.6+2223 (Postman+, 2012)
J/ApJ/762/L30 : CLASH: MCS J0416.1-2403 lensing analysis (Zitrin+, 2013)
J/MNRAS/443/1549 : MACSJ0416.1-2403 strong-lensing analysis (Jauzac+, 2014)
J/MNRAS/444/268 : HST Frontier Fields clusters (Richard+, 2014)
J/ApJ/800/18 : HST/WFC3 obs. of z∼7-8 galaxies in A2744 (Atek+, 2015)
J/ApJ/803/34 : z∼4-10 galaxies from HST legacy fields (Bouwens+, 2015)
J/ApJS/219/15 : Morphologies of z=0-10 galaxies with HST (Shibuya+, 2015)
J/ApJ/811/29 : GLASS. IV. Lensing cluster Abell 2744 (Wang+, 2015)
J/MNRAS/452/1437 : Abell 2744 strong-lensing analysis (Jauzac+, 2015)
J/ApJ/812/114 : Grism Lens-Amplified Survey from Space (GLASS) (Treu+, 2015)
J/ApJ/819/114 : Strong lensing mass modeling of 4 HFF cl. (Kawamata+, 2016)
J/ApJ/820/98 : Galaxy cand. in the Hubble Frontier Fields (Laporte+, 2016)
J/ApJ/831/182 : GLASS. VI. MCS J0416.1-2403 HFF imaging & sp. (Hoag+, 2016)
J/ApJ/835/113 : Gal. ≳6 from the Hubble Frontier Fields (Livermore+, 2017)
J/A+A/600/A90 : MACS J0416.1-2403 redshift catalogue (Caminha+, 2017)
J/ApJ/843/41 : HST/WFC3 obs. of z∼2-8 gal. in 4 HFF cl. (Bouwens+, 2017)
J/MNRAS/469/3946 : Abell 370 MUSE redshifts (Lagattuta+, 2017)
J/MNRAS/473/663 : MUSE and HFFs Photometry of A2744 (Mahler+, 2018)
J/PASJ/70/S10 : GOLDRUSH I. UV magnitudes (Ono+, 2018)
J/ApJ/854/73 : Full-data results of HFF: galaxies z∼6-9 (Ishigaki+, 2018)
Byte-by-byte Description of file: table9.dat table1[01].dat table12.dat
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Bytes Format Units Label Explanations
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1 A1 --- f_ID [k] k=Knot in System 2 for Abell 370
3- 7 F5.1 --- ID [1.1/147.3]? Identifier
9- 13 A5 --- IDKnot Knot identifier (only for Abell 370)
15- 24 F10.6 deg RAdeg Right ascension (J2000)
26- 35 F10.6 deg DEdeg [-44.6/-1.5] Declination (J2000)
37- 41 F5.3 --- zsp [0.7/6.2]? Spectroscopic redshift
43- 46 F4.2 --- zmod [0.7/9.6]? Model redshift
48- 51 F4.2 --- e_zmod [0.01/1.5]? Lower uncertainty on zmod
53- 56 F4.2 --- E_zmod [0.01/1.2]? Upper uncertainty on zmod
58- 61 F4.2 --- zphP [0.7/9.5]? Photo-z Prior
63- 65 F3.1 --- e_zphP [0.5]? zphP uncertainty
67- 79 A13 --- Ref Reference(s) (1)
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Note (1): Reference as follows:
HA14 = Atek et al. (2014ApJ...786...60A 2014ApJ...786...60A),
IB = Balestra et al. (2013A&A...559L...9B 2013A&A...559L...9B),
GC2 = Caminha et al. (2016A&A...587A..80C 2016A&A...587A..80C),
GC = Caminha et al. (2017, J/A+A/600/A90),
LC = Christensen et al. (2012MNRAS.427.1953C 2012MNRAS.427.1953C),
JD = Diego et al. (2015MNRAS.447.3130D 2015MNRAS.447.3130D),
JD2 = Diego et al. (2016MNRAS.459.3447D 2016MNRAS.459.3447D),
JD18 = Diego et al. (2018MNRAS.473.4279D 2018MNRAS.473.4279D),
CG = Grillo et al. (2015ApJ...800...38G 2015ApJ...800...38G),
AH = Hoag et al. (2016, J/ApJ/831/182),
MI = Ishigaki et al. (2015ApJ...799...12I 2015ApJ...799...12I),
MJ2 = Jauzac et al. (2014, J/MNRAS/443/1549),
MJ = Jauzac et al. (2015, J/MNRAS/452/1437),
TJ = Johnson et al. (2014ApJ...797...48J 2014ApJ...797...48J),
WK15 = Karman et al. (2015A&A...574A..11K 2015A&A...574A..11K),
WK16 = Karman et al. (2017A&A...599A..28K 2017A&A...599A..28K),
RK16 = Kawamata et al. (2016, J/ApJ/819/114),
DL17 = Lagattuta et al. (2017, J/MNRAS/469/3946)
DL = Lam et al. (2014ApJ...797...98L 2014ApJ...797...98L),
GM = Mahler et al. (2018, J/MNRAS/473/663)
JM = Merten et al. (2011MNRAS.417..333M 2011MNRAS.417..333M),
JR10 = Richard et al. (2010MNRAS.402L..44R 2010MNRAS.402L..44R),
JR14 = Richard et al. (2014, J/MNRAS/444/268),
SR = Rodney et al. (2018NatAs...2..324R 2018NatAs...2..324R)
GLASS = Schmidt et al. (2014ApJ...782L..36S 2014ApJ...782L..36S),
Treu et al. (2015, J/ApJ/812/114)
XW = Wang et al. (2015, J/ApJ/811/29),
AZ2 = Zitrin et al. (2013, J/ApJ/762/L30),
AZ = Zitrin et al. (2014ApJ...793L..12Z 2014ApJ...793L..12Z)
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Byte-by-byte Description of file: table1[345].dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 5 A5 --- Field Field identifier
7- 15 A9 --- ID Identifier
(<[IKO2018] @{Field}-@{ID}> in Simbad)
17 A1 --- f_ID g=dropout galaxy that composes a
multiple image system
19- 28 F10.6 deg RAdeg Right ascension (J2000)
30- 39 F10.6 deg DEdeg [-44.6/38] Declination (J2000)
41- 45 F5.2 mag UVmag [25.18/34.45] Total apparent UV band magnitude
from light profile fitting with glafic
47- 50 F4.2 mag e_UVmag [0.03/1] Uncertainty on the UVmag (1)
52- 55 F4.2 mag E_UVmag [0.03/0.7] Upper uncertainty on UVmag (1)
57- 62 F6.2 mag UVMAG [-21.7/-12.2] Absolute UV band magnitude
64- 67 F4.2 mag e_UVMAG [0.03/1] Lower uncertainty on UVMAG (1)
69- 72 F4.2 mag E_UVMAG [0.03/0.7] Upper uncertainty on UVMAG (1)
74- 77 F4.2 kpc Re [0.02/4.4] Circularized effective radius (2)
79- 82 F4.2 kpc e_Re [0.01/0.6] Lower uncertainty on Re (1)
84- 87 F4.2 kpc E_Re [0.01/1.2] Upper uncertainty on Re (1)
89- 92 F4.2 --- e [0/0.9] Ellipticity
94- 99 F6.2 --- muBest [0.99/158] Best-fit value of magnification
101- 105 F5.2 --- mu [0.99/95] Median value of the magnification
factor from the MCMC posterior distribution
107- 111 F5.2 --- e_mu [0/45] 1σ uncertainty on mu
113- 118 F6.2 --- E_mu [0/200] 1σ uncertainty on mu
120- 122 F3.1 --- zph [0.1/9.5] Photometric redshift
124- 126 F3.1 --- e_zph [0.1/7.3] Lower uncertainty on zph
128- 130 F3.1 --- E_zph [0.3/7.2] Upper uncertainty on zph
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Note (1): Errors are random errors in the fitting procedure.
Note (2): Circularized effective radius, remaj(1-e)0.5, where
remaj is the radius along the major axis and e is the ellipticity.
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 26-Sep-2023